• add -r option for recursive adding repos in given paths
• remove ungroup sub-command, and clean up group sub-command by adding ll, add, rm sub-sub-commands
• add context sub-command
• add --name to the gita group add command and no longer ask for user input
• add gita group ls command
• add gita group rename command
• add --no-colors for gita ll command
• add gita color sub-command to display current color scheme
• disallow user-defined information item